Jacquard mechanism for embroidering machines



N0. eu,0||. Patented Sept. 20, I898. H. HILL.

JACQUARD MECHANISM FOR EMBROIDERING MACHINES.

(Application filed Jan. 28, 1897.)

(No Model.) 3 SheetsSheet l.

N0. 6l|,0ll. V Patented Sept. 20, I898.

H. HILL. JACOUARD MECHANISM FOB EMBBORDERING MACHINES.

(Application filed Jan. 28, 1897.)

(No Model.) 3 Sheets-Sheet 2.

Patented Sept. 20, I898.

Nu. sn,on.

H. HILL.

JACQUARD MECHANISM FOR EMBBOIDEBING MACHINES.

1 (Application filed Jan. 28, 1897.) (NoModeL) 3 Sheets-Sheet 3.

UNITED STATES PATENT OFFICE,

HENRY HILL, OF NOTTINGHAM, ENGLAND.

JACQUARD MECHANISM FOR EMBROlDERlNG-MACHINES.

SPECIFICATION forming part of Letters Patent No. 611,011, datedSeptember 20, 1898.

Application filed January 28, 1897. Serial No. 621,102. (No model.)Patented in England February 6, 1896, No. 2,751; in Germany August 8,1896, No. 91,184; in Switzerland November 14, 1896, No. 13,399; inAustria December 18, 1896, No. 47/335, in France December 24, 1896,11'0.262,541, and in Belgium December 29, 1896, No. 125,419.

To all whom it may concern.-

Be it known that I, HENRY HILL, a subject of the Queen of England,residing at Nottingham, England, have invented certain. new and usefulImprovements in or Relating to Jacquard Mechanism forEmbroidery-Machines, (for which I have obtained Letters Patent in GreatBritain, No. 2,751, dated February 6, 1896; in Germany, No. 91,184,dated August 8, 1896 5 in Switzerland, No. 13,399, dated November 14,1896; in France, No. 262,541, dated December 24,1896; in Austria, No. 47335, dated December 18, 1896, and in Belgium, No. 125,419, datedDecember 29, 1896,) of which the followingis a specification.

This invention relates to improvements in jacquard mechanism such asthat described in the specification filed with United States applicationof July 14, 1896, Serial'No. 599,129, for automatically moving thefabric-frame each stitch in any direction required.

The object of the present invention is to provide more perfect andconvenient means for moving longitudinally each of the two double racksG G and L L, described and shown in the specification cited. The longi-'tudinal movement of-each of the racks is converted into the rotarymotion of a pinion engaging therewith, and the rotary movement of thepinion being communicated to a screw or a nut thereon the screw is movedlongitudinally, and this movement is communicated to theembroidery-frame to which the said screw is connected. The length of thelongitudinal movement of the screw is determined by the angular distancethrough which it or the nut is rotated, and the latter is determined bythe longitudinal movement of the corresponding rack. The direction inwhich each screw or nut is rotated is determined by putting the pinioninto engagement with one or other of the two racks.

The improved mechanism is arranged to automatically move each doublerack longitudinallyaspace equal to one, two, or more teeth, as required,and it is designed so as to give the long or short movements with equalsmoothness andwithout the jerks or shocks which invariably accompany theuse of droppers or distance-pieces in order that the machine may be runat a higher speed than has hitherto been practicable and the rate ofproduction increased.

The invention will be best understood by reference to the accompanyingdrawings, in which Figure 1 is a side elevation, and Fig. 2 an endelevation, of jacquard mechanism constrncted according to my invention.Fig. 3 is a vertical cross-section taken on line X X of Fig. 1. Figs. 4,5, 6, and 7 are views showing part-s drawn to a larger scale than inFigs. 1 to 3.

Like letters indicate like parts throughout the drawings.

The framing of the apparatus is formed by two standards A A, connectedby three crossstays B B B 0 is a transverse shaft from which the wholeof the requisite movements of the apparatus are obtained. This shaft 0is carried in bearings 0, formed in or secured to the standard A A.

The apparatus is placed in a convenient position, preferably at one-endof the embroidery-machine, and the shaft 0 connected by suitable gearingto the main shaft of the said machine.

D D are two parallel shafts which are mounted loosely and slidelongitudinally in a bracket -bearing D, secured to the crossstays B andinbearings D formed in or secured to the cross-stay B.

Secured to each shaft D is a diagonal frame E, (see Figs. 1, 3, and 4,)provided with a corresponding number of steps, and connected to each ofthe said frames E is a corresponding number of pivoted jacks or arms F,provided with hooks or catches, the said jacks being arranged instep-like series, as shown,

The jacks or arms F are connected to the frame E by adjustable bracketsE (see Figs. 1 and 4,) in which: the jacks or arms F are pivoted, eachof the said brackets being secured to a different step on the frame E.The jacks or arms are thus not only arranged one above the other, butare also each arranged in an independent vertical plane.

The upper ends E of the frames E engage in a longitudinal slide Esecured to the crossstay 13. This slide is placed parallel to the shaftsD and prevents the frames E and the shafts D from rotating about theaxes of the latter.

G is a swinging frame which is pivoted at G in bearings G secured to orformed in the standards A A. This frame is reciprocated between thedotted extreme positions indicated at H II by a cam, or, as shown, by acrank C on the main shaft 0 and a connecting-rod I. The frame Gapproximates in form to the space occupied by the jacks F and is formedwith an opening at each side to receive each set of the said jacks.These openings are formed with steps in the same manner as the diagonalframes E, and each step is provided with a stud or projection J, adaptedto engage with the hook of the corresponding jack. The studs J in eachset are thus equal in number to the jacks F in each set and are disposedso that the hook of each jack, when the latter is raised, will engagewith its corresponding stud J. The studs J in the frame G, it will beseen, are arranged at gradually-increasing distances from the pivot orfulcrum G, and each will thus move through a different space, theamplitude of which is determined by its distance from the pivot orfulcrum G. For example, the hook of the upper jack, marked No. 1, (seeFig. 5,) when raised will engage with the upper stud, which is alsomarked No. 1. The hook or the jack No. 2 when raised will engage withstud No. 2, and so on throughout. It-will be seen that No. 2 stud beingfarther from the fulcrum G of the frame Gthan the stud No. 1 it willmove a greater distance than stud No. 1, and it therefore follows if No.2 jack be raised it will engage with No. 2 stud and be moved a greaterdistance than 1 0; 1 would have moved had the same been raised andengaged with its corresponding stud No. l, and a less distance than No.3. It will also be seen that the whole of each set of jacks F, from Nos.1 to 18, being secured to one frame Eand the latter to the shaft D, thesaid shaft and frame E and the whole of the jacks in the set will bemoved the same distance as the jack which is raised and is thus put inaction.

The distance of each of the studs J from the fulcrum G is preferablyarranged so that it No. 2 stud is brought into action it will move theshaft D twice the distance it would be moved if No. 1 were brought intoaction, No. 3 three times the distance of No. 1, and so 011, so that ifNo. 1 stud moves the shaft a distance equal to one unit or tooth of therack No. 2 will move it two units or teeth, and so on. It is thereforeonly necessary to raise one jack F for each movement in order to movethe shaft D the requisite distance.

The position of the hook F of the jacks F is arranged in line with theframe G when the latter is in the extreme position shown at 11, Fig. 1,so that whichever jack is raised it is immediately engaged by itscorresponding stud on the frame G, and the movement of the said jack isthen identical with that of the stud with which it engages throughout.l/Vith this arrangement there is no jerk or shock either at thecommencement or finish of the movement of the shaft D. The shafts D Dmay be connected to the racks in the same manner as described in thespecification cited or by other convenient means.

The jacks F are each raised by a vertical needle K, Figs. 3 and G, thewhole of which are mounted in a top slay secured to the standards A A,and a triangular slay M, secured by a bracket M to the cross-stays B Theupper ends of the vertical needles K are connected by threads K to thevertical needles of a jacquard of any well-known and suitableconstruction.

Springs K are preferablyinterposed between the jack-threads K and thevertical needles K in order that the selecting-needles in the jacquardmay be raised at any point in the movement of the frame G or at a pointwhere the jacks F are held down by the frame G. When the frame G returnsto the position shown at H, the jack whose correspondingselector-needles in the jacquard have been previously raised will beraised by the action of the spring, and its hook will engage with itscorresponding stud J on the frame G, and a higher speed may thus beobtained. With this arrangement the whole of the time occupied by thereturn movement of the frame G may be employed for the selectingmovement of the jacquard, and the movement is consequently smoother.

Similar means may also be provided in connection with the aboveconstruction for moving the pinions into gear with the racks to thosedescribed in the specification cited. Four jacks N N N N are pivoted tocorresponding rods T T T T the latter being connected in pairs to thetwo opposite ends of the pivoted pinion-levers. The jacks N are pivotedat hooks or catches N (see Fig. 7,) which normally engage with studs 0on the two reciprocating arms 0, secured to the shaft, which latter iscarried in bearings P, secured to or formed in the standards A A. Thejacks N, which are to be inactive, are raised clear of the studs 0, asshown in Fig. 7, by jack threads Q, which are connected to verticalneedles in the jacquard. The arms 0 are reciprocated by a cam R on theshaft C through a lever B, connected to one of the arms 0 by a link RThe jacks N are returned to their normal position after each movement bysprings S, acting on the rods T T T T I claim 1. In afabric-fran1e-moving mechanism for embroidery-machines the combinationwith the main frame, the stationary frame, the hooked jacks pivoted tosaid frame, one above the other but in different vertical planes,connections between the said pivoted jacks and the fabric-frame theswinging frame having pins at varying distances from its fulcrum adaptedto engage with the hooks on the jacks the vertical needles andconnection between said needles and the vertical needles of thejacquard, substantially as described.

2. In a fabric-frame-movin g mechanism for embroidery-machines thecombination with the main frame, the two diagonal frames, each providedwith a corresponding number of steps, the jacks pivoted to each of saidsteps arranged diagonally with respect to a Vertical line, connectionsbetween said pivoted jacks and the fabric-frame, the swinging framehaving openings to receive the jacks, said openings formed with stepscorresponding to the steps of the diagonal frames, and each providedwith a pin with which the hook on the corresponding jack is adapted toengage, said pins arranged diagonally with respect to a vertical line,the vertical needles and connections between said needles and thevertical needles of the jacquard; substantially as described.

3. In a fabric-frame-moving mechanism for embroidery-machines thecombination with the main frame, the diagonally-arranged frames thehooked jacks pivoted thereto,

arranged diagonally with respect to a Vertical line the swinging framehaving the pins at varying distances from its fulcrum said pins arrangeddiagonally with respect to a vertical line and the vertically operatingneedles adapted to lift the jacks to engage the pins of the swingingframe; substantially as described.

4:. In a fabric-frame moving mechanism for embroidery-machines the mainframe the diagonally-arranged frame, carrying the hooked jacks, arrangeddiagonally with respect to a vertical line the swinging frame having thepins, arranged diagonally with respect to a vertical line, thevertically-moving needles operated by the selector-needles, of thejacquard and springs interposed between the vertically-moving needlesand the selectorneedles of the jacquard; substantially as described.

In testimony whereof I have hereto set my hand in the presence of thetwo subscribing witnesses.

HENRY HILL.

Witnesses:

HAROLD CoADY, HARRY B. BRIDGER,

